VLOOKUP or INDEX/MATCH if date falls within range and value matches

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Table 1:

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Date	Code	Price	Ideal Price
01/01/2017	7	?	0
02/02/2017	4	?	0
03/03/2017	7	?	80

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Table 2:

Sale Date	Code	Price
01/10/2017	4	$70
03/02/2017	4	$65
03/06/2017	7	$80

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</tbody>

I want to populate table 1 prices based on a combination of matching codes and a matching date range, say +/-10 days.
I think I might need an array formula that will allow me to search for codes within an array of rows that meet the date criteria but I'm a rookie and I'm not sure I understand how those work. Thanks!